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  <h1 class="topictitle1">步骤8：开启NFSv4.1服务（适用于部分型号）</h1>
  <div>
   <p>执行NAS备份前，需要开启NFSv4.1服务，否则备份将失败。</p>
   <div class="section">
    <h4 class="sectiontitle">登录DeviceManager</h4>
    <ol>
     <li><span>选择“系统 &gt; 基础设施 &gt; 集群管理”。</span></li>
     <li><span>在“备份集群”页签的“本地集群节点”区域，单击节点名称。</span></li>
     <li><span>在弹出的“节点详情”界面，单击“打开设备管理”，进入DeviceManager管理界面。</span></li>
    </ol>
   </div>
   <div class="section" id="nas_s_0028_0__section16941161934519">
    <h4 class="sectiontitle">通过DeviceManager界面开启NFSv4.1服务</h4>
    <ol id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_ol9474161314358">
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li6474813183518"><span>选择“设置 &gt; 文件服务 &gt; NFS服务”。</span></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li0195181917353"><span>在左上方的“租户”下拉框中选择需要开启NFSv4服务的租户。</span></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li184362365364"><span>单击右上角的“修改”。</span><p></p><p id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_p8880155893611">系统进入“NFS服务”的配置页面。</p> <p id="nas_s_0028_0__zh-cn_topic_0000001292005288_p1648016318135"><span><img id="nas_s_0028_0__zh-cn_topic_0000001292005288_image369813213135" src="zh-cn_image_0000001792360766.png"></span></p>
      <div class="note" id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_zh-cn_topic_0000001138838698_zh-cn_topic_0274231677_zh-cn_topic_0272257898_zh-cn_topic_0164720663_note12780141103215">
       <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
       <div class="notebody">
        <p id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_zh-cn_topic_0000001138838698_zh-cn_topic_0274231677_zh-cn_topic_0272257898_zh-cn_topic_0164720663_p7780114114325">界面展示的信息请以实际为准。</p>
       </div>
      </div> <p></p></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li8991419123516"><span>启用“NFSv4.1服务”。</span></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li1475916319252"><span>在“域名”中输入存储域的名称。</span><p></p>
      <div class="note" id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_note685462219540">
       <img src="public_sys-resources/note_3.0-zh-cn.png"><span class="notetitle"> </span>
       <div class="notebody">
        <ul id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_ul8782423175419">
         <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li478222345416">NFSv4.1版本采用“用户名+域名”的映射机制，增强客户端访问共享资源的安全性。</li>
         <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li97824238541">在无域或LDAP环境下，保持默认域名“localdomain”。</li>
         <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li778292385410">在NIS环境下，输入的信息和访问共享的Linux客户端上“/etc/idmapd.conf”文件中的domain一致（推荐这两者都为NIS域的域名）。</li>
         <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li878212312549">域名长度不能超过64个字符。</li>
        </ul>
       </div>
      </div> <p></p></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li622882011356"><span>单击“保存”。</span><p></p><p id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_p136851159913">系统弹出“危险”对话框。</p>
      <div class="notice" id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_note182429551426">
       <span class="noticetitle"><img src="public_sys-resources/notice_3.0-zh-cn.png"> </span>
       <div class="noticebody">
        <p id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_p424210551026">如果已有主机访问存储系统的共享，启用或禁用NFS服务的操作可能会导致业务中断。请仔细确认该操作的影响。</p>
       </div>
      </div> <p></p></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li11450192018359"><span>仔细阅读对话框中的内容，确认无误后选择“我已阅读上述信息，了解执行此操作带来的后果”。</span></li>
     <li id="nas_s_0028_0__zh-cn_topic_0000001292005288_zh-cn_topic_0000001223878385_li129656181229"><span>单击“确定”。</span></li>
    </ol>
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     <strong>父主题：</strong> <a href="nas_s_0020.html">备份NAS共享</a>
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